Singer Avril Lavigne punks out as she enjoys a night of partying in London

Singer Avril Lavigne brightened up the London club scene last night as she went partying in a multi-coloured outfit.

The 24-year-old Canadian showed her punk side as she donned a black and purple hoodie, a black tutu skirt with pink trimmings, spray painted Dr Martens and lace tights for an evening at Boujis in South Kensington with a friend.

Party hard: Avril lavigne and a friend leave Boujis night club in South Kensington last night

Avril, who is married to Sum 41 rocker Deryck Whibley, appeared to be
having the time of her life and danced around happily on the pavement
outside the nightclub.

Despite persistent rumours that she is pregnant, the party girl showed
no signs of a baby bump during the late night jaunt and finally headed
back to her hotel at 4.15am.

Last week the singer revealed that she would be travelling to London for the launch of her debut fragrance 'Black Star'.

'I'm really excited and can't wait to share it with you.

'It will be available across Europe this summer, and soon in the US and Canada," she said in a post on her official website.

'It has been a pretty cool experience. It's so me in a bottle....
hahaha! I love the packaging... And I can't wait to share it with you!
More to come very soon."

Avril unveiled her plans to launch a
clothing and fragrance line last February, saying that it had been a
dream of hers for the past three years.

The pop star is also set to appear in a new film.

Avril,
who has previously starred in 2006's Fast Food Nation and 2007's The
Flock, told The London Paper last year that she has the leading role in
an untitled film, which is apparently "deep and dark" and "something
you wouldn't expect" from her.

She tied the knot with Sum 41 frontman Whibley in a traditional Catholic wedding ceremony in 2006 at a private estate in the California coastal city of Montecito.

Last year the couple denied rumours that their marriage was on the rocks.